In Assassin's Creed Valhalla Siege of Paris you can get abilities that grant you additional skills. This way, you won't have to rely only on the attacks you unlocked in the skill tree. On this page of our guide you will learn the locations of abilities in Paris.
Plague of Rats
The Plague of Rats skill can be found in the Plague Distrier.
To access the skills, you must enter the building. The hole in the wall is located on the left side, between the vines.
When you get inside, you will see a cluttered passage. Your task is to destroy this spot. You can do this with the flammable jugs or with the special skill called the Incendiary Powder Trap.
The treasure is located in the basement. This ability allows you to summon rats and send them at enemies.